Pump



Aug. 22, 1933. w. E. PIKE 1,923,883

PUMP

Filed Aug. 23, 1952 2 Sheets-Sheet l f- 5 W/LL/HM E. HKE

(LIAM/wag Aug. 22, 1933. w. E. PIKE 1,923,883

PUMP

Filed Aug. 23, 1932 2 Sheets-Sheet 2 7 WILL/AM E. P/KE Zlwuawtom Patented Aug.'22, 1933 I H I I r I r UNETEDF STATES vPATEIE JJT OFFICE V PUMP 7 v William E. Pike, Winston-Salem, N. C. a Application A gustzs, 1932. Serial No. 630,014 6 Claims. (01. 103248) This invention relates toapump mechanism for Figure 8 is a transverse sectional view taken pumping liquid such as water by means of a comalong line 8- 8 in Figure 3. pressed fluid such as compressed air or steam; Referring more particularly to the drawings, The invention relates more specifically to a pump the numeral 10 indicates a hexagonal base memmechanism having an inlet for compressed fluid ber for the pump which has integral with the lowand outlet for the liquid being pumped, with a cr side thereof vertically disposed supporting float operable by the leveling of the liquid in a members. 11, 12, 13 and 14 which are adapted to suitable chamber for automatically excluding the rest on the bottom of the liquid compartment such compressed air and the like from the cylinder as on the bottom of awell.

. 0 while the cylinder is filledwith the liquid such H llow ylin r 15.11a i l w r n m n as water-and for automatically admitting the in a circular groove in base member 10, and the compressed 'air and the like to force the liquid upper end of cylinder 15 fits into another circusuch as Water upwardly and at the same time lar groove in the lower surface of a cylinder head closing the intake-valve in the cylinder. 16. Suitable, vertically disposed bolts 17 with a It is" an object of this inventionto providea nut on eachend pierce th S O t e pump mechanism having a vertically movable cylinder head 16. and ext d w w y 0n float therein for alternately admitting and ex-- Il'O iG y i d 15 and Pierce the -W edges 1 eluding compressed air from the cylinder and for of base member 10 at their lower end. These alternately admitting and excluding the flow bolts .17 serve to hold the base 10 and cylinder 1 of water into the cylinder so that the mechanism 1 head '16 and the cylinder 15 tog th r.

is automatic in every detail and isadapted to be n h b s 10 Spider b r 18 is placed below the liquid level in a well, tank and p vi whi h has. slidably mounted therein a the like, sothat the pressure of the liquid alterbolt 19 which bolt 19 has asmaller threaded pornately acting with the operating pressure such tion 20 t its HD1 end Which hasvthreadably 2 as compressed air'will tend to ut m ti ally opmounted thereon a suitable valve cap 21. Upon erate the pump'tolelevate the liquid surrounding this. smaller threaded portionis mounted asteel t pump washer orthe like 22 and a valve washer 23, said In the description, I have referredtothe pump W shers be gs C fin d n bolt 19 by eans of as* being operated by compressed Vair-jiorthe valve cap 21;;-and the shoulder portion of bolt pumping of water but it'is, of course, evidentthat '20. 1 v a {this pump maybe employed for thepumpingof' Integral with sp d m mber 18in base memjany liquid and any source of fluid under pressur ber 10 a circular projection 24 is provided to act such as steam, compressed air and the' like can as a valve seat and is adapted to contact valve be used for the motive power, washer 23 when the valve is in a' closed position.

Some or the objects of the invention having Directly below spider m mbe 18 and i te ra 1 been stated, other objects will appear as the de-l with base member 10, downw y p j c scription proceeds when taken in connection with vmembers 25 are'provided with a suitable circular the accompanying drawings in which-e 1 plate '26 secured on the lower ends thereof by Figure l is a side elevation of the pump; any suitable means such as screws 27 and around Figure 2 is a top plan view of the pump; these members 25 a wire mesh 28 is secured to 9 Figure 3 is a cross sectional view taken along act as a strainer for, the water or other liquid line 3 -3 in Figure 2; l. 7 before itentersthepurnp cylinder. 7 V V Figure 4' is an isometric view of the valve cony n h a 16 has a hollow housing 29 n trol means for controlling the intake and exhaust the p d Which is adapt d tain the valve of air to and from the pump; v mechanism 30 for the intake and exhaust of the Figure 5 is a transverse sectional viewltaken air toflnd from the cylinder- This housing as along line5-5 in Figure lshowing the bottom a cover 290;. Valve mechanism 30 is pivoted as portion of the pump cylinder; Y at 31 and has a vertically disposed arm 32 which 50 Figure 6 is a vertical sectional view taken along is adapted to contact pin 33 of intake air valve line 66 in Figure 5 but showing the valve in 34 and push i in e pesition a shown in Figure an open position; I v 3 to allow compressed air from any suitable Figure '7 is avertical sectionalview taken along source to enter the cylinder thru pipe 35, and "line 7-7 in'Figure 2 showing means foriconnec-l 'fthru-opening around pin 33 into the cylinder.

tion of the outlet water pipes to the upper portion Valve 34 has a suitablevvalve washer 36 which is V of'the c'ylinderf adapted to restagainst valve seat 37 to cut off the intake supply of air when the valve is closed. A suitable compression spring 38 is adapted to fit in transverse bore 39 and against valve 34. By means of nut 40 which is threadably secured in bore 39, compression spring 38 is held firmly against valve 34 and it is thus seen that by this means pin 33 is normally held at all times in contact with vertically disposed arm 32. i To the left of pivot point 31 a vertically dis posed bolt 45 penetrates valve mechanism 30 and is loosely secured thereto by any suitable means such as nuts 46. On the upper end of said bolt 45 is a circular valve cap 47 which has mounted thereon a suitable valve washer 48 which is adapted to contact valve seat 49 to close exhaust 7 wardly into the upper portion of cylinder 15 and laterally almost to the center of the cylinder 15 and then downwardlyagain until it reaches the lower portion of the cylinder. The lower end of member 52 has a lateral projection 53 which has a compression spring 61 therearound, said spring being confined on pin 59 by means of bolt 62 in which pin 59 is slidably mounted. Bolt 62 penetrates U-shaped member58 at its right hand end in Figures 3 and 5 and is secured thereto by any suitable means such as cotter key 64 U-shaped member 58 has a projection 66 which is secured around the lower portion of water outlet pipe 67. Pipe 67 is threadably secured in the lower end of threaded hole 67a in cylinder head 16, and extends downwardly to a point removed from the base 10. Another pipe 68 is threadably secured in the upper end of hole 67a in cylinder head 16 and has secured on the upper end thereof a check valve 69.

Loosely mounted around vertically disposed water outlet pipe 67 and arm 52 is a float 70 which is adapted to be floated in the cylinder bythe water and when the cylinder has been filled the float assumes a position as shown in.

Figure 3. In this position the upper rim 71 of float 70 engages the top lateral portion of arm 52 and causes the left hand end of valve mechanism 30 and also valve cap 47 to move upwardly to close'the air exhaust opening 50, and at the same time-the vertical arm 32 is simultaneously moved to the right and valve 34 assumes an open position which allows the compressed air to enter the chamber and force the water out thru pipes 67, 68 and check valve 69.

When the water has been forced from the cylinder the float 70 falls by gravity and engages the lateral projection 53 or" member 52 and forces it downwardly. This action pulls the left hand end of valve mechanism 30 downwardly and causes the reverse operation to take place from that just described, that is, exhaust opening 50 is opened and the intake valve 34 is closed.

It will be noted that arm 56, pin 59 and spring 61 mounted in member 58 normally assumes the position as shown in Figure 3 when the cylinder is being filled with water, whereas, when the water has been forced out and the weight of float '70 rests upon lateral projection 53, pivot point 55 suddenly assumes another position as far below a horizontal line thru pivot point 57 as it is now shown above. The above-described arrangement ing communication with a source of compressed ."and having a valve in the lower end and having 5 of arm 56, pin 59 and spring 61 and associated parts provides an off-center snap action or toggle arrangement so that the opening and closing of the intake and exhaust valves will be suddenly executed and thereby provide an eflicient opening and closing means.

In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth inthe appended claims.

I claim 1. In a liquid pump adapted to be operated by compressed fluid such as compressed air and having a chamber, a valve in the lower portion of said chamber thru which the liquid is adapted to flow by gravity, a vertically movable float in said chamber, an air pipe having communication with the upper end of said chamber for admitting compressed air to said chamber, awater' pipe having communication with the upper end of said chamber thru which water is adapted to be expelled from said chamber, a double-acting valve for alternately opening and closing the lower end of said air pipe, and off-center snap action means operable by the float for actuating said double-acting valve.

2. A pump adapted to be operatedby compressed air, steam and the like, a shell member having closures for the lower and upper ends thereof, a valve in the lower closure, a pipe havair'and having communication with the upper end of the shell member, a pivoted valve member for intermittently closing and opening the lower end of said pipe to admit compressed air to the shell member, asecond pipe for conveying water from the shell member, a float member mounted 3. In a pump for elevating liquids and being adapted'to be operated by compressed air, steam and the like, said pump having a chamber adapt- I .edto be disposed below the level of the liquid being pumped and being closed at both its ends a pipe conducting compressed air to the upper end, a liquid. outlet pipe, having connection with the upperend of the chamber, a valve mechanism for intermittently opening and closing said pipe conducting compressed air, a float mountoff-center snap action means operableby said float for operating said valve mechanism for alternately opening and closing said air and liquid pipes.

4. In a pump having a chamber and a float in said chamber, valve means for intermittently admitting compressed air to the chamber to expel liquid therefrom, the said chamber being adapted to be submerged below the liquid level to cause the liquid to flow into the chamber when the compressed air is disconnected from said chambenand oifecenter snap action means operable by the float for actuating said valve means.

5. A compressed air pump having a hollow member closed at both ends, a pipe having connection with a source of compressed air and having connection with the upper end of the hollow member, the upper end'of said hollow member having a vent therein, a double acting 1 ed for vertical movement in said chamber and valve for alternately opening and closing said compressed air pipe and. said vent, a float disposed in said hollow member, a valve in the lower end of said-hollow member, off-center snap action valve operating means operable by said float when in lowered position to operate said double acting valve to close said compressed air pipe and open said vent, said valve operating means being also operable by said float when in raised position to open said compressed air pipe and close said vent, and a water pipe connected to said hollowlmember thru which water is adapted to be expelled by the compressed air.

6. In a pump having a casing adapted to be disposed below a liquid to be pumped, said casing having a valve in the lower end thereof thru which the liquid is adapted to flow by gravity into said casing, a pipe for conducting compressed air to the upper end of said casing, a vent in the upper end of said casing, a valve mechanism for alternately opening and closing communication between said chamber and said compressed air pipe haust pipe connected to said casing, a float disposed in said casing, off-center snap action means engageable by said float for operating said valve mechanism to intermittently admit and exhaust compressed air into and from said casing to force the liquid from said casing thru said liquid exhaust pipe;

WILLIAM E. PIKE.

and said vent, a liquid ex' 

